Snoopify

This extension snoopifies your web experience.
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manifest.json
{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Snoopify",
  "description": "This extension snoopifies your web experience.",
  "version": "4.22",
  "browser_action": {
    "default_icon": {
      "38": "icon.png"
    },
    "default_popup": "settings.html"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "snoopify.js"
      ]
    }
  ],
  "permissions": [
    "activeTab",
    "storage"
  ]
}